Comment by jraph

> Open source isn't really about the license, and it's also not even really about the source; open source is a philosophy centering open development and collaboration.

Not really. A project under an open source license which doesn't accept contributions is still open source.

It is totally about the license and the source code availability.

There are interesting things to say about the various development models, and those common in the open source world, but the open source aspect and the development model aspect should not be mixed.